Translocator protein
Definition:
Can bind protoporphyrin IX and may play a role in the transport of porphyrins and heme (By similarity). Promotes the transport of cholesterol across mitochondrial membranes and may play a role in lipid metabolism, but its precise physiological role is controversial. It is apparently not required for steroid hormone biosynthesis. Was initially identified as peripheral-type benzodiazepine receptor; can also bind isoquinoline carboxamides.
References:
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[1]. J Riond, et al. Molecular cloning and chromosomal localization of a human peripheral-type benzodiazepine receptor. Eur J Biochem. 1991 Jan 30;195(2):305-11. [Content Brief]
[2]. Janice M W Taylor, et al. Targeting mitochondrial 18 kDa translocator protein (TSPO) regulates macrophage cholesterol efflux and lipid phenotype. Clin Sci (Lond). 2014 Nov;127(10):603-13. [Content Brief]
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